CN218227977U - One-step molding drum of semisteel self-sealing tire - Google Patents

Abstract

The utility model discloses a one-step molding drum of a semisteel self-sealing tire, which comprises a main shaft, a molding drum, side rings, a support ring, a support frame and a central cover plate; the forming drum, the side rings, the supporting rings and the supporting frame are arranged on the outer side of the main shaft, and the central cover plate is arranged on the outer side of the supporting frame; the side rings comprise a first side ring and a second side ring, are bilaterally symmetrical along the center line of the central cover plate, and have a diameter D, a width b and a thickness H; the forming drum comprises a support ring spring and a control rod, the support ring spring is arranged between the side ring and the support ring, and the control rod is connected with the support ring and penetrates through the support ring spring. The utility model discloses a one-step molding drum of semisteel self sealss tire, on ordinary molding drum's basis, only change the partial design of side ring and central apron, newly-increased support ring replaces with low costsly, can solve semisteel self sealss tire's self-sealing layer on the make-up machine with child embryo integrated into one piece's problem, self sealing material laminating precision height, degree of automation height on the make-up machine.

Description

One-step molding drum of semisteel self-sealing tire

Technical Field

The utility model belongs to the automobile tire field especially relates to a one-off process shaping drum of semisteel self sealss tire.

Background

Tires are ground-rolling annular elastic rubber products assembled on various vehicles or machines, and are generally mounted on metal rims to support vehicle bodies, cushion external impacts, achieve contact with road surfaces, and ensure the driving performance of the vehicles.

Pneumatic tires are widely used due to their excellent shock absorbing characteristics and comfort. In use, a pneumatic tire is mounted on a wheel rim. Pneumatic tires are prone to puncture because they are made of a soft, flexible material including rubber, and when a tire is punctured by a foreign object, the tire loses pressure, requiring replacement of the original tire with a spare tire. In recent years, tire manufacturers have attempted to provide alternative solutions, such as providing self-sealing tires to maintain tire air pressure after the tire encounters a puncture, allowing the vehicle to continue to run.

Self-sealing tyres, known by the english name Self-sealing tire or Self-sealing tyres, are tyres with a sealant/adhesive layer made of an organic elastomer on the inner surface of the tyre. The self-sealing tire is a special safety tire and is used for improving the driving safety, and when the tire is punctured by a sharp object, the self-sealing glue in the tire can be quickly wrapped on the surface of the sharp object; when the sharp object is removed, the self-sealing glue inside automatically flows to the puncture hole for sealing, so that the air pressure of the tire is prevented from leaking, and the stable running of the vehicle is ensured.

The one-step forming machine has high automation degree, high efficiency and high precision, is the preferred forming equipment for producing semi-steel (car) tires, and a central cover plate of a common forming drum is positioned at the outer side of a side ring, so that the problem of the forming drum that a self-sealing layer of the semi-steel (car) self-sealing tire is integrally formed with a tire blank on the forming machine cannot be solved.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem that the common forming drum can not solve the self-sealing layer of the semisteel self-sealing tire and the forming drum of the tire blank integrated forming on the forming machine, the utility model aims to provide a one-step forming drum of the integrated forming semisteel (car) self-sealing tire.

The utility model provides a one-step molding drum of a semisteel self-sealing tire, which comprises a main shaft, a molding drum, side rings, a support ring, a support frame and a central cover plate; the forming drum, the side rings, the support rings and the support frame are arranged on the outer side of the main shaft, the central cover plate is arranged on the outer side of the support frame, the central cover plate is arranged on the inner side of the support rings, and the support rings are arranged on the inner sides of the side rings.

The number of the side rings is two, the side rings comprise a first side ring and a second side ring, the first side ring and the second side ring are symmetrical left and right along the center line of the central cover plate, the side rings have a diameter D and a width b, the side rings also have a thickness H, and the thickness H of the side rings is more than or equal to 5mm and less than or equal to 8mm.

Further, the building drum comprises a first side building drum and a second side building drum, the building drums having a diameter.

Further, the outer side of the side ring has a slope.

Further, the outer side of the side ring also has a lap edge S.

Further, the inside of side ring and the outside overlap joint support of support ring, and the reserve width of overlap joint support is 5mm.

Furthermore, the number of the support rings is two, the support rings comprise a first support ring and a second support ring, and the support rings are symmetrical left and right along the center line of the central cover plate.

Further, the support ring has a width, the width of the support ring being c.

Further, the inside of support ring and the outside overlap joint of center apron support, the reservation width of overlap joint support is 5mm.

Further, the one-step molding drum further comprises a support ring spring and a control rod, the support ring spring is arranged between the side ring and the support ring, the control rod is connected with the support ring, and the control rod penetrates through the support ring spring.

Furthermore, the support ring springs and the control rods are uniformly distributed on the side rings, the number of the support ring springs and the control rods is 3-8, and the support ring springs and the control rods on the side rings on the two sides are distributed in a staggered mode.

Furthermore, the diameter of the steel wire of the support ring spring is d, the height of the support ring spring in a compressed state is h, and h satisfies that d is not less than h and not more than 2d.

Further, the center cover plate is installed on the support frame.

Further, the central cover plate has a width, which is 2a.

Further, the self-sealing material has a total width N, a middle portion width M and a thickness T, wherein the thickness T satisfies that T is more than or equal to 3mm.

Furthermore, two side rings, two support rings and a central cover plate on two sides of the one-time forming drum form a middle groove on the drum surface of the one-time forming drum, the width of the middle groove is W, and the space between the width W of the middle groove and the total width N of the self-sealing material satisfies that W is more than or equal to N.

The utility model discloses a beneficial effect of one-off process molding drum of semisteel self sealss tire:

the utility model discloses a semisteel self sealss tire's a method shaping drum, on ordinary shaping drum's basis, only change the partial design of side ring and central apron, newly-increased support ring, it is lower to replace the cost, can solve semisteel self sealss tire's self-sealing layer on the make-up machine with child embryo integrated into one piece's shaping drum problem, self sealss material laminating precision is high, degree of automation is high on the make-up machine. Through careful design and checking calculation, the forming drum can produce the integrated vulcanized semisteel self-sealing tire, so that the integrated vulcanized semisteel self-sealing tire can be produced industrially like a common tire, and has good application prospect.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

FIG. 1 is a schematic view of a conventional drum construction;

FIG. 2 is a schematic view of the stretching structure of the one-step forming drum of the semisteel self-sealing tire of the present invention;

FIG. 3 is a schematic view of the shrinkage structure of a one-step molding drum of a semisteel self-sealing tire according to the present invention;

FIG. 4 is a schematic view of the side ring structure of a one-step molding drum of a semisteel self-sealing tire according to the present invention;

fig. 5 is a schematic view of a composite film structure of a self-sealing material.

The reference numbers illustrate:

10. a common forming drum;

20. a side ring;

30. a support ring;

40. a support frame;

50. a central cover plate;

100. forming a drum by a one-step method;

200. a main shaft;

300. a forming drum;

400. a side ring;

500. a support ring;

510. a support ring spring;

520. a control lever;

600. a support frame;

700. a central cover plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "left", "right", "center", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, and for example, "connected" may be a fixed connection, a detachable connection, or an integral connection; can be mechanically or electrically connected; either directly or indirectly through intervening media, or through both elements. The specific meaning of the above terms in the present invention can be understood as a specific case by those skilled in the art.

DETAILED DESCRIPTION OF EMBODIMENT (S) OF INVENTION

Fig. 1 is a schematic structural diagram of a conventional general building drum, and as shown in fig. 1, a general building drum 10 includes a side ring 20, a support ring 30, a support frame 40 and a central cover plate 50, the central cover plate of the building drum is located outside the side ring, the side ring and a connected support metal ring slide in the inner range of the central cover plate according to different process parameters, and the side ring and the support frame play a role in supporting the central cover plate. The expansion of the forming drum is completed according to the setting of the forming process parameters, and the parameter requirements of the plane width, the forming width and the super-forming width between the two steel wire rings are met. The width of the central cover plate is 2a, the width of the side ring is b, b is less than or equal to a-40 between a and b, and the maximum shrinkage value of the forming drum is met.

Fig. 2 is the utility model discloses a semi-steel self sealss tire's a process building drum's stretch structure schematic diagram, fig. 3 is the utility model discloses a semi-steel self sealss tire's a process building drum's contraction structure schematic diagram, as shown in fig. 2 and fig. 3, the utility model discloses a semi-steel self sealss tire's a process building drum 100 includes main shaft 200, building drum 300, side ring 400, support ring 500, support frame 600 and center cover plate 700, and building drum 300, side ring 400, support ring 500 and support frame 600 set up in the outside of main shaft 200, and center cover plate 700 sets up in the outside of support frame 600. The center cover plate 700 is disposed inside the support ring 500, and the support ring 500 is disposed inside the side ring 400.

The utility model discloses a building drum that semisteel self sealss tire used under the unchangeable prerequisite of ordinary building drum main part design, through the structure of redesign side ring, support ring and central apron, satisfies self sealss tire's forming process needs.

The building drum 300 comprises a first side building drum and a second side building drum, the building drums having a diameter, which in this embodiment is the same as a normal building drum, the first side building drum being a left side building drum and the second side building drum being a right side building drum.

Fig. 4 is the side ring structural schematic diagram of a one-off process molding drum of semisteel self-sealing tire of the utility model, as shown in fig. 4, the quantity of side ring 400 is two, including first side ring and second side ring, along the central line bilateral symmetry of center apron, in this embodiment, first side ring is the left side ring, and the second side ring is the right side ring. The side rings have a diameter D and a width b, the diameter of the side rings being the same as the diameter of the side rings of a conventional building drum. The side ring also has a thickness H, the thickness of the side ring is the same as that of the material used, or the thickness of the side ring is +/-1-2 mm relative to the thickness of the material used, preferably, the thickness H of the side ring satisfies 5mm ≦ H ≦ 8mm, and in the embodiment, the thickness H of the side ring is 6mm. The thickness H of the side ring can be fixed corresponding to the self-sealing tire with one inch number, the design thickness can meet the production requirement of products with one inch number series, and the materials are guaranteed to be flat on the drum and easy to position. The connecting position of the side ring is the same as that of a common forming drum, so that the interchangeability is ensured.

The outer side of the side ring has a slope, in this embodiment the width of the slope is 20mm, and the outer side of the side ring also has a lap edge S. The inboard of side ring and the outside overlap joint support of support ring, the reservation width of overlap joint support is 5mm.

The number of the support rings 500 is two, and includes a first support ring and a second support ring, which are bilaterally symmetric along the center line of the center cover plate. The support ring has a width, the width of the support ring is c, the support ring can slide on the main shaft, the sliding range of the support ring is different according to different process parameters, the axial sliding range of the support ring is in the width range of the side ring and the central cover plate, and the expansion ratio of the forming drum is ensured to meet the design requirement of self-sealing tire forming parameters. The inboard and the outside overlap joint of center apron of support ring support, the reservation width that the overlap joint supported is 5mm. The outside of support ring supports with the inboard overlap joint of side ring, and the reservation width that the overlap joint supported is 5mm.

The one-shot drum 100 further comprises a support ring spring 510 arranged between the side ring and the support ring, and a control rod 520 connected to the support ring and passing through the support ring spring. The support ring is pressed in the control rod all the time under the condition that the central cover plate does not compress the support ring.

The support ring springs and the control rods are uniformly distributed on the side rings of the whole forming drum, the number of the support ring springs and the control rods is 3-8 groups according to different process parameters, and the support ring springs and the control rods on the side rings on two sides are distributed in a staggered mode. When the support ring spring is in a compressed state, the spring ring is in a spiral winding shape, the diameter of a steel wire of the support ring spring is d, the height of the support ring spring in the compressed state is h, h satisfies that d is not less than h and not more than 2d, and the shaping width of the self-sealing tire in production is ensured.

The center cover 700 is mounted on the support frame 600, and has sufficient rigidity to ensure the pressing pressure during the production of the support tire. The center cover plate has a width, 2a, and the width a of the center cover plate is selected according to the tire building flat width confirmation. According to the setting of the molding process parameters, the shrinkage and the extension of the molding drum are completed through the relative sliding of the side rings, the support rings and the central cover plate, and the parameter requirements of the plane width, the molding width and the super-molding width between the two steel wire rings are met.

Fig. 5 is a schematic structural view of a composite film of a self-sealing material, and as shown in fig. 5, the self-sealing material has a total width N, a middle portion width M and a thickness T, and the thickness T satisfies T ≥ 3mm, and can ensure a certain self-sealing effect. In general, the extension range of the semisteel self-sealing tire from the tire blank to the finished product is 1.2-1.7, preferably, the thickness of the self-sealing material in use is 5-8 mm, so that a good comprehensive effect can be obtained, and in the embodiment, the thickness T of the self-sealing material is 5mm. The upper layer and the lower layer of the auxiliary material of the composite film are films for tire production, the forming and pressing are not affected due to the thin thickness of the films, and the self-sealing composite film can be prefabricated and rolled onto a specific tool.

Two side rings, two support rings and a central cover plate on two sides of the one-time forming drum form a middle groove on the drum surface of the one-time forming drum, the width of the middle groove is W, the width of the self-sealing material is N, in the embodiment, W and N satisfy W = N, namely, the width W of the middle groove is the same as the width N of the self-sealing material.

The side ring with the slope forms a transition slope, the length of the transition slope is the same as that of the self-sealing material, and the length range of the slope is generally 10-20 mm.

Determining the values of the side ring width b and the overlap edge S according to the width N of the self-sealing material, so that the straight width, the self-sealing material groove, the shaping width and the tire unloading width in the tire molding process meet the tire molding requirement, the space between the width W of the middle groove and the total width N of the self-sealing material satisfies that W is more than or equal to N, and setting W = N in molding.

The utility model discloses a one-shot method building drum can remove the support ring and can satisfy the plant use of normal tire through changing central apron and side ring simultaneously.

The utility model discloses a molding process of one-off process molding drum of semisteel self sealss tire:

the utility model discloses a one-off process shaping drum of semisteel self sealss tire is when the shaping, and recess in the middle of side ring, support ring and the central cover plate formation, laminating self-sealing material complex in the middle recess, accomplish and go up drum, location, fixed length, connect the back, paste inner liner and side wall complex etc. according to the shaping procedure of general product, accomplish the shaping process after, produce the child embryo that pastes self sealss material in the child, after vulcanizing through special technology, accomplish the manufacturing of self sealss tire.

The above description is only for the preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, improvements, equivalents, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims (10)

1. A one-step molding drum of a semisteel self-sealing tire comprises a main shaft, a molding drum, side rings, support rings, a support frame and a central cover plate; the shaping drum the side ring the support ring with the support frame sets up the outside of main shaft, the central cover plate sets up the outside of support frame, the central cover plate set up in the inboard of support ring, the support ring set up in the inboard of side ring, its characterized in that, the quantity of side ring is two, including first side ring and second side ring, along the central line bilateral symmetry of central cover plate, the side ring has diameter D and width b, the side ring still has thickness H, the thickness H of side ring satisfies that 5mm is less than or equal to H and is less than or equal to 8mm.

2. The one-off drum for semisteel self-sealing tires according to claim 1, characterized in that: the outer side of the side ring is provided with a slope, and the outer side of the side ring is also provided with a lap edge S.

3. A drum for one-shot building of semi-steel self-sealing tyres as claimed in claim 1, characterized in that: the inboard of side ring with the outside overlap joint of support ring supports, and the reservation width that the overlap joint supported is 5mm.

4. A drum for one-shot building of semi-steel self-sealing tyres as claimed in claim 1, characterized in that: the number of the support rings is two, the support rings comprise a first support ring and a second support ring, the first support ring and the second support ring are bilaterally symmetrical along the center line of the central cover plate, the support rings have widths, and the widths of the support rings are c.

5. A drum for one-shot building of semi-steel self-sealing tyres as claimed in claim 1, characterized in that: the inboard of support ring with the outside overlap joint of center apron supports, and the reservation width that the overlap joint supported is 5mm.

6. The one-off drum for semisteel self-sealing tires according to claim 1, characterized in that: the one-time forming drum further comprises a support ring spring and a control rod, the support ring spring is arranged between the side ring and the support ring, the control rod is connected with the support ring, and the control rod penetrates through the support ring spring.

7. A drum for one-shot building of semi-steel self-sealing tyres as claimed in claim 6, characterized in that: the diameter of the steel wire of the support ring spring is d, the height of the support ring spring in a compressed state is h, and h satisfies that d is not less than h and not more than 2d.

8. The one-off drum for semisteel self-sealing tires according to claim 1, characterized in that: the central cover plate has a width, the width of the central cover plate being 2a.

9. A drum for one-shot building of semi-steel self-sealing tyres as claimed in claim 4, characterized in that: the self-sealing material has a total width N, a middle part width M and a thickness T, wherein the thickness T satisfies that T is more than or equal to 3mm.

10. A drum for one-shot building of semi-steel self-sealing tyres as claimed in claim 9, characterized in that: the two support rings and the central cover plate form a middle groove on the drum surface, the width of the middle groove is W, and the width W of the middle groove and the total width N of the self-sealing material meet the condition that W is larger than or equal to N.

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